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Apparatus for determining pressure and method of manufacturing the same

A technology of pressure and extrusion force, which is used in the manufacture of devices for determining pressure, pressure sensors, and high-pressure sensors, which can solve problems such as material elongation, and achieve the effect of improving strength and good mechanical decoupling

Active Publication Date: 2016-10-26
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

thus may cause elongation of the resistive material on the steel diaphragm surface

Method used

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  • Apparatus for determining pressure and method of manufacturing the same
  • Apparatus for determining pressure and method of manufacturing the same
  • Apparatus for determining pressure and method of manufacturing the same

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] figure 1A schematic block diagram of a device 1 for determining pressure according to one embodiment of the invention is shown.

[0032] The device 1 has a housing 10 with a cavity 12 which has a mouth 13 which opens out from the cavity 12 to the outside of the housing 10 . The housing 10 also has a first sealing structure 14 . The device 1 also comprises a sensor device 20 with a second sealing structure 24 . The second sealing structure 24 cooperates with the first sealing structure 14 in such a way that the mouth 13 of the cavity 12 can be closed or is closed by the sensor device 20 by means of the first sealing structure 14 and the second sealing structure 24 .

[0033] The cavity is subjected to a pressure to be determined in that a fluid, which is charged with the pressure to be determined, is introduced into the cavity or has been introduced into the cavity, the sensor device 20 being designed to determine the Pressure to be determined.

[0034] The device 1 ...

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PUM

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Abstract

The present invention relates to a device for determining a pressure and a method of manufacturing the same. The device is configured with a housing having a cavity and a first sealing structure, a sensor device having a second sealing structure in cooperation with the first sealing structure so that the mouth of the cavity can pass therethrough Wherein the sensor device is configured to determine a pressure to load the cavity; and a sealing device at least partially disposed in the cavity and configured to apply pressure to the cavity by applying a pressing force to Said sensor means to compress said second seal structure onto said first seal structure.

Description

technical field [0001] The invention relates to a device for determining pressure and to a method for producing the device for determining pressure. In particular, the invention relates to a pressure sensor, preferably a high-pressure sensor, which has a self-sealing construction and connection technology. A “high pressure sensor” is to be understood in particular as a sensor designed to determine a pressure above 2000 bar, preferably above 2500 bar, particularly preferably above 3000 bar, wherein the high pressure sensor is advantageously not damaged. 1 bar is equivalent to 100,000 pascals. Background technique [0002] In hydraulics and in many areas of process technology, pressure sensors, ie devices for determining pressure, especially pressures greater than 50 bar, play an important role. In particular in vehicle construction, such devices are used in various systems, for example in direct fuel injection and driving dynamics control. In general, so-called piezoresist...

Claims

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Application Information

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IPC IPC(8): G01L9/04G01L19/14G01L23/18
CPCG01L9/04G01L19/14G01L23/18G01L9/005G01L9/0054G01L19/142G01L19/147
Inventor F·克洛普
Owner ROBERT BOSCH GMBH
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